[RE-wrenches] Battery impedance analyzers

[robert ellison]

I guess that i can qualify as an "off grid battery wrench" I also do large
motive power batteries.The difference being mostly that they are on wheels.
I have recieved 1 on grid call in 2 years and they were looking to connect
an off grid system to the grid.
So much for qualifying for NABCEP !
The immediate area that I am in gets lake effect off Lake Ontario and
averages 1 hour a day of sun in the winter That's an estimate, were worse
than Syracuse, NY. They even took Syracuse off the isolation charts for a
few years, too depressing I guess.

Back to pulling wires,

Bob

2009/3/27 Larry Crutcher, Starlight Solar <larry at starlightsolar.com>

> Travis,
> The local Interstate distributor has one too but only for a starting
> battery, nothing for deep cycle or 6 volt batteries. I'll let you know what
> I find out.
> I realize most wrenches are grid tie installers. How many off grid battery
> wrenches are on the list?
>
> Larry
>
>
>
>  On Mar 27, 2009, at 6:19 AM, Travis Creswell wrote:
>
>   Hi Larry,
>
> I’ve often wondered about them.  My local battery “superstore” (everything
> from cell phone to golf carts) had been using them for the last few years to
> test automotive starter batteries and deep cycles but the last time I was in
> there I noticed they’d gone back to the old standby resistance/carbon pile
> style testers.  I inquired and wasn’t able to get any exacts but the summary
> was they were not happy with them.  I’m curious to know your findings on
> both fronts.
>
> Best,
> Travis Creswell
> Ozark Energy Services
> www.ozarkenergyservices.com
>
>
>  ------------------------------
>  *From:* re-wrenches-bounces at lists.re-wrenches.org [
> mailto:re-wrenches-bounces at lists.re-wrenches.org<re-wrenches-bounces at lists.re-wrenches.org>
> ] *On Behalf Of *Larry Crutcher, Starlight Solar
> *Sent:* Thursday, March 26, 2009 7:08 PM
> *To:* RE-wrenches at lists.re-wrenches.org
> *Subject:* [RE-wrenches] Battery impedance analyzers
>
> Hello Wrenches,
>
>  Is anyone using an impedance type battery analyzer for lead acid
> batteries? If so, what do you have and how has it worked out. I have seen
> prices from $200 to $7500 and I'm sure there is a world of difference.
>
>  I have been using a pulser circuit I built about 4 years ago to restore
> nearly dead AGM batteries but I have not had any sophisticated method of
> verifying before and after performance. I perform a constant current
> equalization with no voltage limit and then leave the battery on the pulser
> for a few weeks. This works great and I have restored and sold a few used
> AGM batteries that would have gone to the recycler. Today our battery buyer
> just picked up another 15,400 lb. of batteries from us. Yep, they were
> mostly murdered! I would like to be able to restore more of them.
>
>
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